Date: Fri, 24 Feb 2006 14:20:40 -0800 From: Sam Leffler <sam@errno.com> To: freebsd-current@freebsd.org Subject: Re: CFT: src/tools/tools/npcus Message-ID: <43FF86B8.1070607@errno.com> In-Reply-To: <43FF79A0.8040809@errno.com> References: <43FF79A0.8040809@errno.com>
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Sam Leffler wrote: > I need folks to test some code committed recently for identifying the > number of cpu's on a machine. The plan is to use this code to choose an > SMP or UP kernel during an install. > > cd /usr/src/tools/tools/ncpus > make > su > ./ncpus > > You should get output like this: > > trouble# ./ncpus > acpi0_check: nexus0 attached > acpi0_check: legacy0 not-present > acpi0_check: npx0 attached > acpi0_check: acpi0 attached > ncpus: MADT: Found CPU APIC ID 1 enabled > ncpus: MADT: Found CPU APIC ID 2 disabled > acpi: 1 > ncpus: MPTable: Found CPU APIC ID 0 enabled > mptable: 1 > > acpi: 1 means checking ACPI configuration info we found 1 cpu. mptable: > 1 means MPTable indicated there was 1 cpu. The rest of the stuff > printed out is for debugging. > > If you run this test and DON'T see the correct number of cpus for your > machine please mail me (directly) with the output and dmesg output from > booting your kernel. FWIW acpi info is considered more definitive than > MPTable so if acpi gives you the right answer but MPTable does not > that's ok. If you get a compile error like this: amper% # make Warning: Object directory not changed from original /usr/src/tools/tools/ncpus cc -O2 -fno-strict-aliasing -pipe -fomit-frame-pointer -c ncpus.c cc -O2 -fno-strict-aliasing -pipe -fomit-frame-pointer -c acpi.c cc -O2 -fno-strict-aliasing -pipe -fomit-frame-pointer -c biosmptable.c In file included from biosmptable.c:41: /usr/include/machine/mptable.h:143: error: syntax error before "pcib" then /usr/include/machine/mptable.h is not up to date wrt /usr/src. Sorry for not mentioning that detail. Sam
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